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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
The specification of photographic archives management
WITHDRAWN published on 25.10.1989
Selected format:General requirements for the file formation of scientific and technical archives
WITHDRAWN published on 11.12.2000
Selected format:Marshall test machine for bituminous mixtures
WITHDRAWN published on 1.1.1989
Selected format:Technical requirement for benkelman beam pavement deflectometer
WITHDRAWN published on 1.1.1989
Selected format:Testing methods for benkelman beam pavement deflectometer
WITHDRAWN published on 1.1.1989
Selected format:Propeller-type current meter
WITHDRAWN published on 25.10.1989
Selected format:Rotating current meter
WITHDRAWN published on 9.9.2002
Selected format:Cup-type current meter
WITHDRAWN published on 25.10.1989
Selected format:Liquid flow measurement in open channels--Float-type water level gauge
WITHDRAWN published on 25.10.1989
Selected format:Instruments for stage measurement—Part 1:Float-type stage gauge
WITHDRAWN published on 9.9.2002
Selected format:Latest update: 2025-11-12 (Number of items: 2 243 625)
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